Is Lisa Raye And Da Brat Related?

Has anybody else heard that Lisa Raye and Da Brat are sisters ?
They look alot alike. Does anyone know for sure? How are the DA brat and Lisa Raye related?
Are they really sisters?

Yeah, I read an article in Sister 2 Sister magazine a few years ago and Lisa Raye mentioned that Da Brat is her sister. Its really crazy because they look nothing alike!
They are sisters, by the same Dad, they just have diffrent moms.